Preparation method of high-viscosity, wear-resistant, antistatic and flame-retardant polyester
A flame retardant composite and antistatic technology, which is applied in the fields of antistatic and flame retardant composite functional polyester and its preparation, high viscosity and wear resistance, and can solve the problem of not having wear resistance and antistatic, not having high viscosity and wear resistance And antistatic performance and other problems, to achieve the effect of high viscosity, good flame retardancy and good wear resistance
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Embodiment 1
[0011] Embodiment 1: with reference to attached figure 1 . A preparation method (parts by mass) of high-viscosity, wear-resistant, antistatic and flame-retardant composite functional polyester: (1) Pre-esterification reaction: 1-2.5 parts of ethylene glycol (EG), 1 part of phosphorus-based flame retardant Add 2-carboxyethylphenylphosphinic acid (CEPPA) into the pre-esterification reaction kettle, and under stirring conditions (known vacuum stirring speed), vacuumize to a constant value of 0.002-0.012Mpa, slowly raise the temperature to dissolve CEPPE And keep boiling, the temperature is controlled below 160°C to carry out esterification for 2-4 hours, H2O is generated during the esterification process, H2O is separated and measured, and the same part of EG as the separated water is supplemented to prepare the flame retardant pre-esterification liquid I (2-carboxylate Ethylphenylphosphinic acid diethylene glycol ester) for future use, its acid value is not more than 70mgKOH / g...
Embodiment 2
[0013] Example 2: On the basis of Example 1, (1) pre-esterification reaction: Add 1 part of ethylene glycol (EG) and 1 part of phosphorus-based flame retardant 2-carboxyethylphenylphosphinic acid (CEPPA) to the pre-esterification reaction In the esterification reaction kettle, under the condition of stirring (known vacuum stirring speed), vacuumize to a constant value of 0.002-0.012Mpa, slowly raise the temperature to dissolve CEPPE and keep boiling, and control the temperature below 160°C for 2 hours of esterification , H2O is generated during the esterification process, H2O is separated and measured, supplemented with EG separated from the same part of water, and the flame-retardant pre-esterification solution I (diethylene glycol 2-carboxyethylphenylphosphinate) is prepared for use, and its acid The value is not more than 70mgKOH / g; (2) Preparation of composite additives: use 2 mass parts of EG to grind and mix 1 mass part of anti-wear agent SiO2 and 1 mass part of antistati...
Embodiment 3
[0014]Example 3: On the basis of Example 1, (1) pre-esterification reaction: Add 2.5 parts of ethylene glycol (EG) and 1 part of phosphorus-based flame retardant 2-carboxyethylphenylphosphinic acid (CEPPA) to the pre-esterification reaction In the esterification reaction kettle, under the condition of stirring (known vacuum stirring speed), vacuumize to a constant value of 0.002-0.012Mpa, slowly raise the temperature to dissolve CEPPE and keep boiling, and control the temperature below 160°C for esterification 2- For 4 hours, H2O was generated during the esterification process, and the H2O was separated for measurement, and the same part of EG as the separated water was supplemented to prepare the flame-retardant pre-esterification solution I (diethylene glycol 2-carboxyethylphenylphosphinate) for later use. Its acid value is not greater than 70mgKOH / g; (2) Composite additives: use 6 parts of EG to grind and mix 3 parts by mass of anti-wear agent SiO2 and 3 parts by mass of ant...
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